London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Hackney 1902
Report on the sanitary condition of the Hackney District for the year 1902
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Analysis of River Lea Water, made during the year 1902, by Leo Taylor, F.I.C., Public Analyst.
| Date. | Where taken. | Total solid residue | Saline Ammonia. | Organic Ammonia. | Chlorine. | Nitrates. | Nitrites. | Oxygen required to oxidize the organic matter in 4 hours. | Suspend'd matter. | Dissolved Organic Matters. | Sulphurated Hydrogen | Remarks. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 19 | Leyton Sewage Works Outlet. | 600 grains per gallon. | 5.46 grains per gallon. | •770 grains per gallon. | 10.0 grains per gallon. | Traces. | Very slight traces. | 2.997 grains per gallon. | 1.8 grains per gallon. | 11.6 grains per gallon. | Strong traces. | The sample was light brownish, yellow in tint, and possessed a strong sewage odour. It is little better than sewage from which the solid matters have been removed. |
| July 19 | Stream adjoining " White Hart." | 63.4 | 4.760 | •560 | 8.6 | Strong Traces. | Very slight traces. | 1.791 | 8.8 | 8.0 | Very strong traces | The sample was light brown in tint, and possessed a foul sewage odour. |